27406069 has 2 divisors, whose sum is σ = 27406070. Its totient is φ = 27406068.

The previous prime is 27406061. The next prime is 27406079. The reversal of 27406069 is 96060472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25623844 + 1782225 = 5062^2 + 1335^2 .

It is a cyclic number.

It is not a de Polignac number, because 27406069 - 2³ = 27406061 is a prime.

It is a super-2 number, since 2×27406069² = 1502185236065522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27406061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13703034 + 13703035.

It is an arithmetic number, because the mean of its divisors is an integer number (13703035).

Almost surely, 2^27406069 is an apocalyptic number.

It is an amenable number.

27406069 is a deficient number, since it is larger than the sum of its proper divisors (1).

27406069 is an equidigital number, since it uses as much as digits as its factorization.

27406069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 27406069 is about 5235.0806106497. The cubic root of 27406069 is about 301.4964819859.

The spelling of 27406069 in words is "twenty-seven million, four hundred six thousand, sixty-nine".